{"id":21387,"date":"2024-04-27T08:00:45","date_gmt":"2024-04-27T08:00:45","guid":{"rendered":"https:\/\/heylocate.mobi\/pt\/?post_type=termin&p=21387"},"modified":"2024-04-30T16:54:41","modified_gmt":"2024-04-30T16:54:41","slug":"gps-spoofing","status":"publish","type":"termin","link":"https:\/\/heylocate.mobi\/pt\/termin\/gps-spoofing\/","title":{"rendered":"Falsifica\u00e7\u00e3o de GPS (GPS Spoofing)"},"content":{"rendered":"\n

O que \u00e9 Falsifica\u00e7\u00e3o de GPS?<\/h2>\n\n\n\n

Falsifica\u00e7\u00e3o de GPS<\/strong> (em ingl\u00eas GPS Spoofing)<\/em> \u00e9 a manipula\u00e7\u00e3o intencional de sinais do Sistema Global de Navega\u00e7\u00e3o por Sat\u00e9lite (GNSS)<\/a> para enganar receptores e fazer com que forne\u00e7am dados de localiza\u00e7\u00e3o ou tempo incorretos. Esta manipula\u00e7\u00e3o \u00e9 realizada por meio da transmiss\u00e3o de sinais falsos que imitam aqueles transmitidos por sat\u00e9lites aut\u00eanticos.<\/p>\n\n\n\n

\"Ilustra\u00e7\u00e3o
Representa\u00e7\u00e3o gr\u00e1fica do GPS spoofing, em que um dispositivo recebe dados falsos, deturpando sua localiza\u00e7\u00e3o real.<\/figcaption><\/figure>\n\n\n\n

Mecanismos de Falsifica\u00e7\u00e3o de GPS<\/h3>\n\n\n\n

Os mecanismos empregados na falsifica\u00e7\u00e3o de GPS variam, mas frequentemente envolvem a transmiss\u00e3o de sinais falsificados que superam os sinais leg\u00edtimos recebidos pelo receptor. Um m\u00e9todo comum \u00e9 o ataque de arrasto, onde o agressor instala um transmissor de alta pot\u00eancia pr\u00f3ximo ao receptor alvo e emite sinais falsos mais fortes que os dos sat\u00e9lites GPS. Consequentemente, o receptor, incapaz de diferenciar entre sinais reais e falsos, trava nos sinais falsificados e fornece informa\u00e7\u00f5es de posicionamento incorretas.<\/p>\n\n\n\n

Estrat\u00e9gias para Combater a Falsifica\u00e7\u00e3o de GPS<\/h2>\n\n\n\n

Para mitigar a amea\u00e7a da falsifica\u00e7\u00e3o de GPS, v\u00e1rias estrat\u00e9gias podem ser empregadas:<\/p>\n\n\n\n

Estrat\u00e9gia<\/th>Descri\u00e7\u00e3o<\/th><\/tr><\/thead>
Dissuas\u00e3o F\u00edsica<\/strong><\/td>T\u00e9cnicas como a oculta\u00e7\u00e3o de antenas tornam mais dif\u00edcil para os atacantes mirarem nos receptores. Isso pode envolver blindar antenas ou coloc\u00e1-las em locais menos acess\u00edveis<\/td><\/tr>
Recep\u00e7\u00e3o Multi-GNSS<\/strong><\/td>Utilizar sinais de m\u00faltiplas constela\u00e7\u00f5es GNSS (GPS<\/a>, GLONASS, BeiDou) pode ajudar a identificar discrep\u00e2ncias causadas por spoofing. Inconsist\u00eancias entre sistemas de navega\u00e7\u00e3o podem indicar um ataque<\/td><\/tr>
T\u00e9cnicas de Detec\u00e7\u00e3o Avan\u00e7adas<\/strong><\/td>Analisar dados de v\u00e1rios sensores do ve\u00edculo (por exemplo, veloc\u00edmetros, aceler\u00f4metros) para comparar o movimento esperado com as informa\u00e7\u00f5es do GPS. Discrep\u00e2ncias podem potencialmente revelar spoofing<\/td><\/tr>
Sistemas de Comunica\u00e7\u00e3o Cooperativa<\/strong><\/td>Aproveitar a comunica\u00e7\u00e3o entre ve\u00edculos (por exemplo, CACC) para detectar inconsist\u00eancias nos dados de posicionamento relativo, revelando potencialmente ataques de spoofing em ve\u00edculos aut\u00f4nomos<\/td><\/tr>
Pesquisa e Desenvolvimento Cont\u00ednuos<\/strong><\/td>Esfor\u00e7os cont\u00ednuos s\u00e3o cruciais para se manter \u00e0 frente dos atacantes. Isso pode envolver explorar novas tecnologias antisspoofing e melhorar m\u00e9todos de detec\u00e7\u00e3o existentes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Refer\u00eancias<\/h2>\n\n\n\n
    \n
  1. Coffed, Jeff (February 2014). \u201cThe Threat of GPS Jamming The Risk to an Information Utility<\/a>\u201d (PDF). Exelis.<\/li>\n\n\n\n
  2. Jon S. Warner; Roger G. Johnston (December 2003). \u201cGPS Spoofing Countermeasures<\/a>\u201d. homelandsecurity.org.<\/li>\n\n\n\n
  3. What Is GPS Spoofing and How Do You Defend Against It<\/a>? | Okta<\/li>\n\n\n\n
  4. Spoofing attack<\/a> – Wikipedia<\/li>\n\n\n\n
  5. What is GPS spoofing<\/a>? | McAfee<\/li>\n\n\n\n
  6. GPS Spoofing – DataVisor Digital Fraud Wiki<\/a><\/li>\n\n\n\n
  7. GPS Spoofing<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    O que \u00e9 Falsifica\u00e7\u00e3o de GPS? Falsifica\u00e7\u00e3o de GPS (em ingl\u00eas GPS Spoofing) \u00e9 a manipula\u00e7\u00e3o intencional de sinais do Sistema Global de Navega\u00e7\u00e3o por Sat\u00e9lite (GNSS) para enganar receptores e fazer com que forne\u00e7am dados de localiza\u00e7\u00e3o ou tempo…<\/p>\n","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","acf":[],"yoast_head":"\nO que \u00e9 Falsifica\u00e7\u00e3o de GPS?<\/title>\n<meta name=\"description\" content=\"Defini\u00e7\u00e3o, significado e explica\u00e7\u00e3o de GPS spoofing. 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